Guys, this is an interesting thread and I have followed it all the way through. Now I find that I simply must expose my ignorance. I seem to be the only person who does not understand what "nailing" is.
My car is noisy and it may be "nailing", but if it is, I wouldn't know it.
Would it be possible for someone to expand somewhat on how to recognize this problem when it occurs?
Thanks in advance for your response.